Open-ILS/src/c-apps/oils_idl-core.c

   1 #include "oils_idl.h"
   2
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include <libxml/globals.h>
   6 #include <libxml/xmlerror.h>
   7 #include <libxml/parser.h>
   8 #include <libxml/tree.h>
   9 #include <libxml/debugXML.h>
  10 #include <libxml/xmlmemory.h>
  11
  12 #define PERSIST_NS "http://open-ils.org/spec/opensrf/IDL/persistance/v1"
  13 #define OBJECT_NS "http://open-ils.org/spec/opensrf/IDL/objects/v1"
  14 #define BASE_NS "http://opensrf.org/spec/IDL/base/v1"
  15
  16 xmlDocPtr idlDoc = NULL; // parse and store the IDL here
  17
  18 /* parse and store the IDL here */
  19 osrfHash* idlHash;
  20
  21 osrfHash* oilsIDL() { return idlHash; }
  22 osrfHash* oilsIDLInit( char* idl_filename ) {
  23
  24         if (idlHash) return idlHash;
  25
  26         char* string_tmp = NULL;
  27
  28         idlHash = osrfNewHash();
  29         osrfHash* usrData = NULL;
  30
  31         osrfLogInfo(OSRF_LOG_MARK, "Parsing the IDL XML...");
  32         idlDoc = xmlReadFile( idl_filename, NULL, XML_PARSE_XINCLUDE );
  33
  34         if (!idlDoc) {
  35                 osrfLogError(OSRF_LOG_MARK, "Could not load or parse the IDL XML file!");
  36                 return NULL;
  37         }
  38
  39         osrfLogInfo(OSRF_LOG_MARK, "Initializing the Fieldmapper IDL...");
  40
  41         xmlNodePtr docRoot = xmlDocGetRootElement(idlDoc);
  42         xmlNodePtr kid = docRoot->children;
  43         while (kid) {
  44                 if (!strcmp( (char*)kid->name, "class" )) {
  45
  46                         usrData = osrfNewHash();
  47                         osrfHashSet( usrData, xmlGetProp(kid, "id"), "classname");
  48                         osrfHashSet( usrData, xmlGetNsProp(kid, "fieldmapper", OBJECT_NS), "fieldmapper");
  49
  50                         osrfHashSet( idlHash, usrData, (char*)osrfHashGet(usrData, "classname") );
  51
  52                         string_tmp = NULL;
  53                         if ((string_tmp = (char*)xmlGetNsProp(kid, "tablename", PERSIST_NS))) {
  54                                 osrfHashSet(
  55                                         usrData,
  56                                         strdup( string_tmp ),
  57                                         "tablename"
  58                                 );
  59                         }
  60
  61                         string_tmp = NULL;
  62                         if ((string_tmp = (char*)xmlGetNsProp(kid, "virtual", PERSIST_NS))) {
  63                                 osrfHashSet(
  64                                         usrData,
  65                                         strdup( string_tmp ),
  66                                         "virtual"
  67                                 );
  68                         }
  69
  70                         osrfStringArray* controller = osrfNewStringArray(0);
  71                         string_tmp = NULL;
  72                         if( (string_tmp = (char*)xmlGetProp(kid, "controller") )) {
  73                                 char* controller_list = strdup( string_tmp );
  74                                 osrfLogInfo(OSRF_LOG_MARK, "Controller list is %s", string_tmp );
  75
  76                                 if (strlen( controller_list ) > 0) {
  77                                         char* st_tmp;
  78                                         char* _controller_class = strtok_r(controller_list, " ", &st_tmp);
  79                                         osrfStringArrayAdd(controller, strdup(_controller_class));
  80
  81                                         while ((_controller_class = strtok_r(NULL, " ", &st_tmp))) {
  82                                                 osrfStringArrayAdd(controller, strdup(_controller_class));
  83                                         }
  84                                 }
  85                         }
  86                         osrfHashSet( usrData, controller, "controller");
  87
  88
  89                         osrfHash* _tmp;
  90                         osrfHash* links = osrfNewHash();
  91                         osrfHash* fields = osrfNewHash();
  92
  93                         osrfHashSet( usrData, fields, "fields" );
  94                         osrfHashSet( usrData, links, "links" );
  95
  96                         xmlNodePtr _cur = kid->children;
  97
  98                         while (_cur) {
  99
 100                                 if (!strcmp( (char*)_cur->name, "fields" )) {
 101
 102                                         string_tmp = NULL;
 103                                         if( (string_tmp = (char*)xmlGetNsProp(_cur, "primary", PERSIST_NS)) ) {
 104                                                 osrfHashSet(
 105                                                         usrData,
 106                                                         strdup( string_tmp ),
 107                                                         "primarykey"
 108                                                 );
 109                                         }
 110
 111                                         string_tmp = NULL;
 112                                         if( (string_tmp = (char*)xmlGetNsProp(_cur, "sequence", PERSIST_NS)) ) {
 113                                                 osrfHashSet(
 114                                                         usrData,
 115                                                         strdup( string_tmp ),
 116                                                         "sequence"
 117                                                 );
 118                                         }
 119
 120                                         xmlNodePtr _f = _cur->children;
 121
 122                                         while(_f) {
 123                                                 if (strcmp( (char*)_f->name, "field" )) {
 124                                                         _f = _f->next;
 125                                                         continue;
 126                                                 }
 127
 128                                                 _tmp = osrfNewHash();
 129
 130                                                 string_tmp = NULL;
 131                                                 if( (string_tmp = (char*)xmlGetNsProp(_f, "array_position", OBJECT_NS)) ) {
 132                                                         osrfHashSet(
 133                                                                 _tmp,
 134                                                                 strdup( string_tmp ),
 135                                                                 "array_position"
 136                                                         );
 137                                                 }
 138
 139                                                 string_tmp = NULL;
 140                                                 if( (string_tmp = (char*)xmlGetNsProp(_f, "virtual", PERSIST_NS)) ) {
 141                                                         osrfHashSet(
 142                                                                 _tmp,
 143                                                                 strdup( string_tmp ),
 144                                                                 "virtual"
 145                                                         );
 146                                                 }
 147
 148                                                 string_tmp = NULL;
 149                                                 if( (string_tmp = (char*)xmlGetNsProp(_f, "primitive", PERSIST_NS)) ) {
 150                                                         osrfHashSet(
 151                                                                 _tmp,
 152                                                                 strdup( string_tmp ),
 153                                                                 "primitive"
 154                                                         );
 155                                                 }
 156
 157                                                 string_tmp = NULL;
 158                                                 if( (string_tmp = (char*)xmlGetProp(_f, "name")) ) {
 159                                                         osrfHashSet(
 160                                                                 _tmp,
 161                                                                 strdup( string_tmp ),
 162                                                                 "name"
 163                                                         );
 164                                                 }
 165
 166                                                 osrfLogInfo(OSRF_LOG_MARK, "Found field %s for class %s", string_tmp, osrfHashGet(usrData, "classname") );
 167
 168                                                 osrfHashSet(
 169                                                         fields,
 170                                                         _tmp,
 171                                                         strdup( string_tmp )
 172                                                 );
 173                                                 _f = _f->next;
 174                                         }
 175                                 }
 176
 177                                 if (!strcmp( (char*)_cur->name, "links" )) {
 178                                         xmlNodePtr _l = _cur->children;
 179
 180                                         while(_l) {
 181                                                 if (strcmp( (char*)_l->name, "link" )) {
 182                                                         _l = _l->next;
 183                                                         continue;
 184                                                 }
 185
 186                                                 _tmp = osrfNewHash();
 187
 188                                                 string_tmp = NULL;
 189                                                 if( (string_tmp = (char*)xmlGetProp(_l, "reltype")) ) {
 190                                                         osrfHashSet(
 191                                                                 _tmp,
 192                                                                 strdup( string_tmp ),
 193                                                                 "reltype"
 194                                                         );
 195                                                 }
 196                                                 osrfLogInfo(OSRF_LOG_MARK, "Adding link with reltype %s", string_tmp );
 197
 198                                                 string_tmp = NULL;
 199                                                 if( (string_tmp = (char*)xmlGetProp(_l, "key")) ) {
 200                                                         osrfHashSet(
 201                                                                 _tmp,
 202                                                                 strdup( string_tmp ),
 203                                                                 "key"
 204                                                         );
 205                                                 }
 206                                                 osrfLogInfo(OSRF_LOG_MARK, "Link fkey is %s", string_tmp );
 207
 208                                                 string_tmp = NULL;
 209                                                 if( (string_tmp = (char*)xmlGetProp(_l, "class")) ) {
 210                                                         osrfHashSet(
 211                                                                 _tmp,
 212                                                                 strdup( string_tmp ),
 213                                                                 "class"
 214                                                         );
 215                                                 }
 216                                                 osrfLogInfo(OSRF_LOG_MARK, "Link fclass is %s", string_tmp );
 217
 218                                                 osrfStringArray* map = osrfNewStringArray(0);
 219
 220                                                 string_tmp = NULL;
 221                                                 if( (string_tmp = (char*)xmlGetProp(_l, "map") )) {
 222                                                         char* map_list = strdup( string_tmp );
 223                                                         osrfLogInfo(OSRF_LOG_MARK, "Link mapping list is %s", string_tmp );
 224
 225                                                         if (strlen( map_list ) > 0) {
 226                                                                 char* st_tmp;
 227                                                                 char* _map_class = strtok_r(map_list, " ", &st_tmp);
 228                                                                 osrfStringArrayAdd(map, strdup(_map_class));
 229
 230                                                                 while ((_map_class = strtok_r(NULL, " ", &st_tmp))) {
 231                                                                         osrfStringArrayAdd(map, strdup(_map_class));
 232                                                                 }
 233                                                         }
 234                                                 }
 235                                                 osrfHashSet( _tmp, map, "map");
 236
 237                                                 string_tmp = NULL;
 238                                                 if( (string_tmp = (char*)xmlGetProp(_l, "field")) ) {
 239                                                         osrfHashSet(
 240                                                                 _tmp,
 241                                                                 strdup( string_tmp ),
 242                                                                 "field"
 243                                                         );
 244                                                 }
 245
 246                                                 osrfHashSet(
 247                                                         links,
 248                                                         _tmp,
 249                                                         strdup( string_tmp )
 250                                                 );
 251
 252                                                 osrfLogInfo(OSRF_LOG_MARK, "Found link %s for class %s", string_tmp, osrfHashGet(usrData, "classname") );
 253
 254                                                 _l = _l->next;
 255                                         }
 256                                 }
 257
 258                                 _cur = _cur->next;
 259                         }
 260                 }
 261
 262                 kid = kid->next;
 263         }
 264
 265         osrfLogInfo(OSRF_LOG_MARK, "...IDL XML parsed");
 266
 267         return idlHash;
 268 }
 269
 270 osrfHash* oilsIDLFindPath( char* path, ... ) {
 271         if(!path || strlen(path) < 1) return NULL;
 272
 273         osrfHash* obj = idlHash;
 274
 275         VA_LIST_TO_STRING(path);
 276         char* buf = VA_BUF;
 277
 278         char* token = NULL;
 279         char* t = buf;
 280         char* tt;
 281
 282         token = strtok_r(t, "/", &tt);
 283         if(!token) return NULL;
 284
 285         do {
 286                 obj = osrfHashGet(obj, token);
 287         } while( (token = strtok_r(NULL, "/", &tt)) && obj);
 288
 289         return obj;
 290 }
 291
 292 int oilsIDL_classIsFieldmapper ( char* classname ) {
 293         if (!classname) return 0;
 294         if(oilsIDLFindPath( "/%s", classname )) return 1;
 295         return 0;
 296 }
 297
 298 int oilsIDL_ntop (char* classname, char* fieldname) {
 299         osrfHash* _pos = NULL;
 300
 301         if (!oilsIDL_classIsFieldmapper(classname)) return -1;
 302         _pos = oilsIDLFindPath( "/%s/fields/%s", classname, fieldname );
 303         if (_pos) return atoi( osrfHashGet(_pos, "array_position") );
 304         return -1;
 305 }
 306
 307 char * oilsIDL_pton (char* classname, int pos) {
 308         char* ret = NULL;
 309         osrfHash* f = NULL;
 310         osrfHash* fields = NULL;
 311         osrfHashIterator* itr = NULL;
 312
 313         if (!oilsIDL_classIsFieldmapper(classname)) return NULL;
 314
 315         fields = oilsIDLFindPath( "/%s/fields", classname );
 316         itr = osrfNewHashIterator( fields );
 317
 318         while ( (f = osrfHashIteratorNext( itr )) ) {
 319                 if ( atoi(osrfHashGet(f, "array_position")) == pos ) {
 320                         ret = strdup(itr->current);
 321                         break;
 322                 }
 323         }
 324
 325         osrfHashIteratorFree( itr );
 326
 327         return ret;
 328 }
 329